Typhoon Hagupit was building strength over the Pacific, with gusts of up to 170km/h (105mph), when it was seen by Metop-B on 4 December.
05 November 2020
04 December 2014
The Natural Colour RGB and infrared images, from 4 November, show Typhoon Hagupit, know locally at Ruby, in the Western Pacific as it was forming into a category 5 Super Typhoon.
Hagupit struck the far eastern island of Samar on 6 December with winds of 210 km/h (130 mph) — just over a year after the country was devastated by Super Typhoon Haiyun. Twenty-seven people died and there was widespread damage.
5 December activity
On 5 December the storm was downgraded from Super Typhoon, but remained a danger to the Philippines.
Quick tracking of Typhoon Hagupit with IASI
The very high spectral resolution of IASI provided a huge amount of information on the atmospheric conditions that intensified Hagupit from a tropical storm on 1 December into a category 5 super typhoon on 4 December.
This allowed the Japan Meteorological Agency (JMA) to determine that Hagupit had reached peak intensity at 06:00 UTC on 4 December, with winds of 215 km/h and central pressure of 905 hPa.
Having two IASI instruments currently mapping the radiances emitted over a given region — without the gaps which would result from having only one instrument — allowed EUMETSAT to track the displacement of the typhoon by monitoring its radiance using one channel at 11 microns, of the more than 8,461 channels available.
The resulting quick tracking of Typhoon Hagupit helped give the Philippine authorities enough warning to evacuate the threatened areas, keeping the death toll in the low double digits, compared to the 7,000 dead and missing caused by Super Typhoon Haiyan in November 2013.
On 6 December, the IASI instruments on Metop-A and -B showed Hagupit weaken to a category 3 typhoon, which made landfall over Dolores, Eastern Samar (Figure 5) .
Typhoon Hagupit makes landfall in Philippines (Met Office News Blog)
Typhoon Hagupit on Flickr
Real-time storm coverage (SSEC, University of Wisconsin-Madison)
A year after Haiyan’s devastation, new typhoon threatens Philippines (CNN)
Hotter Ocean Waters Give Typhoons a Boost (Scientific American)
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